. The street railway review . ropulsion of tramway cars,which question has been before the Glasgow Corpora-tion for some time. Sir Williams opinions occupy nearlya column, but we will give the gist of them in a fewwords. Cable traction:—Absolutely unsuitable for Glas-gow. Electric traction—overhead system:—All rightfor quiet straight runs in a village or suburbs, but he doesnot approve of it for a city like Glasgow. Mr. Johnsonsoil motor system:—We referred to an excellent perform-ance of this motor in a recent issue, but in spite of thatperformance Sir William, having seen the motor at work.
. The street railway review . ropulsion of tramway cars,which question has been before the Glasgow Corpora-tion for some time. Sir Williams opinions occupy nearlya column, but we will give the gist of them in a fewwords. Cable traction:—Absolutely unsuitable for Glas-gow. Electric traction—overhead system:—All rightfor quiet straight runs in a village or suburbs, but he doesnot approve of it for a city like Glasgow. Mr. Johnsonsoil motor system:—We referred to an excellent perform-ance of this motor in a recent issue, but in spite of thatperformance Sir William, having seen the motor at work. 78 ^i/i£etj\aiWciyli^e\^^ considers it the best motor he has yet seen for tramwaypurposes. He is of opinion that only one system shouldbe adopted for the whole of the city. SKINNER-DORLAND ELECTRIC BRAKE E. B. Skinner and Robert of the Ogden CityStreet Railway have been at work for several years onan electric brake and have now got it in successful oper-ation on one of the Ogden cars. It is a solenoid brake. CONTROLLER FOR ELECTRIC BRAKE. operated from the trolley current but the controller forthe brake has contacts so that in case of emergency whenthe trolley comes off the brake may be applied by themotors acting as dynamos. The solenoid, which takesthe place of the air cylinder on an air brake is a coil andplunger with coil 3 inches inside diameter and windings2 inches thick. Its length is 24 inches. The magneticcircuit is made complete by putting an iron case aroundthe coil. This is essential to the success of the next important detail is the auxiliary device for keep-ing the brake set without use of current. A small mag- net works a clutch which can be released or set by themovement of the controller handle from one point to an-other, so that except when the brake is being drawntighter no current is used. The controlling stands aresimilar to car controlling stands except that they aresmaller as they do not have to carry so large a
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
